Sorry to hear your having an issue, have you tried resetting the system?
Turn the system off
Unplug the power cord from the power outlet
Remove any discs in the disc tray
Remove the battery located in the bottom of the system (if your model has a battery backup) Wait 30 Seconds
Reconnect the power cord
Test the system. If the radio now operates properly, replace the battery with a new one
We hope this helps, thanks for messaging and have a great day.